I suddenly cannot save m-files anymore. What can I do about that?

When I create a new m-file and want to "save it as..." it does not change its name from "untitled" in the Editor and the little star telling i is unsaved does not disapear. Then again when I open and change an existing m-file I can save it as usual. I am using version 8.0.0.783 (R2012b).

Tanks for your help!!!

[Micol Pennacchio]

I have exactely the same problem after upgrading from Matlab 2008b to 2012b (actually I uninstalled the first and installed the second from scratch) on Windows 7. Anybody found a solution yet?

[Nikola]

I have the exact same problem here. I'm using windows 8. Is the still no solution??

edit: I just restarted my pc like the support suggested and it actually worked :)

[Image Analyst]

Please run PSR.exe (Start>Search Programs and Files->psr, or whatever the equivalent way to find programs in in Windows 8) and record your session and upload to your favorite file sharing web site. Then tell us where you uploaded it. http://www.mathworks.com/matlabcentral/answers/7924-where-can-i-upload-images-and-files-for-use-on-matlab-answers That way we'll see exactly what you see in a series of screenshots.

Answer 1

[Azzi Abdelmalek]

copy your file content to text file(notepad for example), restart matlab, and save your file

[Caleb Okafor]

All you need to do is to create a new folder and save the new file into that folder because there is a limit to the number of files that a folder can contain. I tried it and it worked for me!

[Walter Roberson]

NTFS permits 2^31-1 files per subdirectory. If you are exceeding that, you should be reorganizing.

FAT32 permits 65534 files per subdirectory. That might apply for something like a USB stick.

[ParkourPolkaDots]

I'm saving the files on my laptop computer and I don't even have that many files in the folder, less than 20 files. 10 images and 5 code snippets max.

Answer 2

[Image Analyst]

What operating system are you using and where are you trying to save it? Windows 7 does not let you save in certain folders even though the save file dialog will let you browse there.

Does the dialog box just exit as if everything went perfectly normally, or does it give you any kind of error message? If there is no error message, it should have worked and changed the title bar name in the editor. If it doesn't behave that way, I'd call the Mathworks.

[Azzi Abdelmalek]

He said suddenly he can't save his file, means that he could save it before

[Image Analyst]

That's now how I read it. I read that with an existing file that he saved before he could still save it: " I open and change an existing m-file I can save it as usual."

While for a brand new file, never before saved: " I create a new m-file and want to "save it as..." it does not change its name from "untitled" in the Editor and the little star telling i is unsaved does not disapear"

[Jan]

@Azzi: After dozens of years of experiences with computer users, I've learned that "suddenly" means: directly after a modification I do not tell here, because I either do not assume that it is important or I'm even not aware of it.

[Azzi Abdelmalek]

I see

Answer 3

[Sascha]

Hello and thanks for your answers so far. Image Analyst got it right. I am using Windows 7 Starter (on a netbook). There is no error dialogue, everything seems fine except the point, taht the m-file is not saved in the end.

[Image Analyst]

Got the problem description right, but still no solution. It seems totally bizarre and unexplainable so you need to call tech support.

Answer 4

[Sean de Wolski]

We have a few reports of this happening (including from me!) so please contact us so we can learn more about it.

One user resolved it by reintalling Windows.

[Jing Ci Neo]

This just happened to me! There was no error message and I could go through the save process as per normal, but the script is not saved (remains as untitled).

MATLAB R2021b, MacOS Mojave, v10.14.6

(update) Actually, I cannot run any scripts at all

[Image Analyst]

@Jing Ci Neo, call tech support. Not being able to run any scripts at all is not normal. Tech support can start a screen sharing session with you and fix it. We can't do that.

Answer 5

[Elisa]

I have the same problem.

I believe that the problem has been in the updating of jdk from 1.6 to 1.7 and the declaration of the environment variable MATLAB_JAVA...

check it anyway...

Answer 6

[Bao Le]

first check your code are there any variables that are same with the function of matlab, if not copy it to a new file and save it

Answer 7

[Mireia Torralba]

Hi,

Today I had exactly the same problem.

Matlab release: 2019b

OS Windows.

Now it seems to work fine but just to keep issue stats updated.

Best.

[Mireia Torralba]

Hi,

Is there any Matlab technichal support memberc checking this issue? I had again the same problem today, which was solved again when I restarted Maltab. Therefore, is not a coding or OS problem but seems more to be a Matlab bug.

[Walter Roberson]

Is there any Matlab technichal support memberc checking this issue?

No. This is not an official support channel. You should open a technical support case.

[Image Analyst]

Did you see my comment at the top about running PSR?

Attach the zip file it creates here with the paper clip icon so we can look at it.

[OSCAR ARAGON]

I

I changed the compatibility of the executable in the folder C: \ Program Files \ MATLAB \ R2019b \ bin \ matlab.exe to windows 8 and saved the .m files again

Answer 8

[Drashti Sahu]

My Problem is :

Firstly i installed the MATLAB 2021 version in which when i save the file a pop-up box came which was telling file does not found.

I was thinking may be it is the problem of version so i uninstalled that and i download version 2019a in my pc but again i face the same issue .

can someone please help me .

[Image Analyst]

Did you try PSR like I suggested in my comment at the top? Or did you call tech support (if not, why not)?

[Songhe Zhao]

I have the same problem with my 2019b version. I just have to close and restart the MATLAB, then it work ok. it happens time to time, don't know how to fix. it is northing to do with folder save permission, othewise how it work after matlab restart ?

[Image Analyst]

And did you call tech support? If not, why not?

Answer 9

[Pradnya]

Hii, I too face the same problem:

" save('allFileInfo')

Error using save

Unable to write file allFileInfo: permission denied."

Appreciate your feedback

[Image Analyst]

https://www.mathworks.com/matlabcentral/answers/50429-i-suddenly-cannot-save-m-files-anymore-what-can-i-do-about-that#comment_132379